Keep in mind that Roger Friedman has revealed some very interesting, true things about Michael Jackson.
Such as, the fact that Michael Jackson wanted to sabotage and end Jermaine Jackson's career in the late '80s.
Michael Jackson took Babyface and "L.A." Reid from Jermaine Jackson at that time so as to work with him on his 'Dangerous' album.
This was confirmed also by American record producer Clive Davis, who wrote in his book that:
"Jermaine couldn't believe that Michael, his close brother, would hijack his producers' material this way … Jermaine was crying, indeed sobbing at times, so deeply hurt that his brother would do this to him" ('Soundtrack Of My Life' book, Clive Davis)
That is also why, Jermaine Jackson later released his 'Word to the Badd!!' song aimed at Michael Jackson.